The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2010
Filed:
Feb. 16, 2006
Jens Wolber, Gerlingen, DE;
Oliver Wiemers, Stuttgart, DE;
Winfried Langer, Illingen, DE;
Andreas Baumann, Vaihingen/Enz, DE;
Christian Koehler, Erligheim, DE;
Norbert Mueller, Farmington Hills, MI (US);
Hans-juergen Baehr, Ebersbach, DE;
Matthias Walz, Vaihingen/Enz, DE;
Jens Wolber, Gerlingen, DE;
Oliver Wiemers, Stuttgart, DE;
Winfried Langer, Illingen, DE;
Andreas Baumann, Vaihingen/Enz, DE;
Christian Koehler, Erligheim, DE;
Norbert Mueller, Farmington Hills, MI (US);
Hans-Juergen Baehr, Ebersbach, DE;
Matthias Walz, Vaihingen/Enz, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a method and a device for operating an injection device () for an internal combustion engine, the injection device () includes injection valves (), via which fuel is injected directly into combustion chambers () of the internal combustion engine. Mechanisms are provided for detecting misfirings (), and for determining a fuel pressure (). A mechanical fault of an injection valve () is detected when a misfire occurs in a cylinder () and the fuel pressure simultaneously drops below a threshold value (SW). An electrical fault in an injection device () is detected when misfirings of cylinders () assigned to an output stage bank of the injection device () are observed, and the fuel pressure has dropped below a threshold value (SW). The responses to the faults that are implemented differ depending on the faults that were detected.